I have noted when using the Multisite Content Copier to post to "All Sites" that there is an upper limit to the Blog ID that it will post to. I believe it is around ID 500. So, it posts to all blogs that have an ID < 500 but doesn't post to blogs that have an ID > 500.
Is there a way to get it to actually post to all rather than stopping at 500?
Again 500 is an estimate and I haven't reviewed the code to know the exact value but it is close to 500.